com.espertech.esper.epl.agg.aggregator

Class AggregatorMinMaxEver

java.lang.Object

com.espertech.esper.epl.agg.aggregator.AggregatorMinMaxEver

All Implemented Interfaces:

AggregationMethod

Direct Known Subclasses:

AggregatorMinMaxEverFilter

public class AggregatorMinMaxEver
extends java.lang.Object
implements AggregationMethod

Min/max aggregator for all values, not considering events leaving the aggregation (i.e. ever).

Field Summary

Fields

Modifier and Type	Field and Description
protected java.lang.Comparable	currentMinMax
protected MinMaxTypeEnum	minMaxTypeEnum

Constructor Summary

Constructors

Constructor and Description
AggregatorMinMaxEver(MinMaxTypeEnum minMaxTypeEnum) Ctor.

Method Summary

Modifier and Type	Method and Description
static void	applyEnterCodegen(AggregationMethodFactoryMinMax forge, int column, CodegenMethodNode method, ExprForgeCodegenSymbol symbols, ExprForge[] forges, CodegenClassScope classScope)
void	clear() Clear out the collection.
static void	clearCodegen(int column, CodegenMethodNode method, CodegenClassScope classScope)
void	enter(java.lang.Object object) Apply the value as entering aggregation (entering window).
java.lang.Comparable	getCurrentMinMax()
java.lang.Object	getValue() Returns the current value held.
static void	getValueCodegen(int column, CodegenMethodNode method)
void	leave(java.lang.Object object) Apply the value as leaving aggregation (leaving window).
static void	rowMemberCodegen(int column, CodegenCtor ctor, CodegenMembersColumnized membersColumnized)
void	setCurrentMinMax(java.lang.Comparable currentMinMax)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

minMaxTypeEnum

protected final MinMaxTypeEnum minMaxTypeEnum

currentMinMax

protected java.lang.Comparable currentMinMax

Constructor Detail

AggregatorMinMaxEver

public AggregatorMinMaxEver(MinMaxTypeEnum minMaxTypeEnum)

Ctor.

Parameters:

minMaxTypeEnum - - enum indicating to return minimum or maximum values

Method Detail

rowMemberCodegen

public static void rowMemberCodegen(int column,
                                    CodegenCtor ctor,
                                    CodegenMembersColumnized membersColumnized)

enter

public void enter(java.lang.Object object)

Description copied from interface: AggregationMethod

Apply the value as entering aggregation (entering window).

The value can be null since 'null' values may be counted as unique separate values.

Specified by:

enter in interface AggregationMethod

Parameters:

object - to add to aggregate

applyEnterCodegen

public static void applyEnterCodegen(AggregationMethodFactoryMinMax forge,
                                     int column,
                                     CodegenMethodNode method,
                                     ExprForgeCodegenSymbol symbols,
                                     ExprForge[] forges,
                                     CodegenClassScope classScope)

leave

public void leave(java.lang.Object object)

Description copied from interface: AggregationMethod

Apply the value as leaving aggregation (leaving window).

The value can be null since 'null' values may be counted as unique separate values.

Specified by:

leave in interface AggregationMethod

Parameters:

object - to remove from aggregate

clear

public void clear()

Description copied from interface: AggregationMethod

Clear out the collection.

Specified by:

clear in interface AggregationMethod

clearCodegen

public static void clearCodegen(int column,
                                CodegenMethodNode method,
                                CodegenClassScope classScope)

getValue

public java.lang.Object getValue()

Description copied from interface: AggregationMethod

Returns the current value held.

Specified by:

getValue in interface AggregationMethod

Returns:

current value

getValueCodegen

public static void getValueCodegen(int column,
                                   CodegenMethodNode method)

setCurrentMinMax

public void setCurrentMinMax(java.lang.Comparable currentMinMax)

getCurrentMinMax

public java.lang.Comparable getCurrentMinMax()